Home / 18,838.63-25,998.52-10,455.13

Finding the Fourth Proportional to 18,838.63, 25,998.52 and 10,455.13

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Solution

The fourth proportional to 18,838.63, 25,998.52 and 10,455.13 is: 14,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.63 : 25,998.52 = 10,455.13 : x
  2. Step 2: Convert to fraction form
    18,838.63/25,998.52 = 10,455.13/x
  3. Step 3: Cross multiply
    18,838.63x = 25,998.52 × 10,455.13
  4. Step 4: Simplify right side
    18,838.63x = 271,817,906.41
  5. Step 5: Solve for x
    x = 271,817,906.41/18,838.63
  6. Step 6: Final answer
    x = 14,428.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.